Fill in the blanks :
1. The male and female gametes in angiosperms are produced in the ..a..and ..b.., respectively.
2. In angiosperms, both male and female gametes are ..c.., they have to be brought together for..d..to occur. The ..e..is the mechanism to achieve this objective

Options

A. a-pollen grain, b-embryo sac, c-motile, d-pollination, e-fertilisation
B. a-generative cell, b-nucellus, c-non motile, d-pollination, e-fertilisation
C. a-pollen grain, b-embryo sac, c-motile, d-fertilisation, e-pollination
D. a-pollen grain, b-embryo sac, c-non motile, d-fertilisation, e-pollination

Answer

D

Explanation

1. The male and female gametes in angiosperms are produced in the pollen grain and embryo sac, respectively.
2. In angiosperms, both male and female gametes are non-motile, they have to be brought together for fertillisation to occur. The pollination is the mechanism to achieve this objective.